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प्रश्न
Calculate electric potential at a point P which is at a distance of 9 cm from a point charge of 50 μC.
उत्तर
Given that, distance d = 9 cm = 9 × 10-2 m
Q = 50 × 10-6 C
∴ V = `"k"/"d"`
`= (9 xx 10^3 xx 50 xx 10^-6)/(9 xx 10^-2)`
= 50 × 105 volt
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